Impact sleeve pullers



June 5, 1956 R. 5. KNUDSEN ET AL 2,748,458

IMPACT SLEEVE PULLERS Filed Jan. 2, 1953 IN NT RS.

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United States Patent 2,748,458 IMPACT SLEEVE PULLERS Raymond G. Knudsen and Henry F. Last, Kenosha, Wis, assignors to Snap-On Tools Corporation, Kenosha, Win, a corporation of Delaware Application January 2', 1953, Serial- No. 329,201

3 Claims. (.Cl 29- 28'0) This invention relates to sleeve pullers and inserters and more particularly to hydraulic valve sleeve pullers and inserters although certain features thereof may be employed with equal advantages for other purposes.

It contemplates more especially the provision of an improved tool for rendering valve sleeve pullers and inserts readily accessible to hydraulic valve sleeves for pulling and inserting without entailing any appreciable labor or time. I

Internal combustion engines are now equipped with hydraulic valve lifters and these entail mechanisms such as sleeves and valves that are normally inaccessible to the usual and customary tools. These hydraulic valves and sleeves require replacement and their removal as well as insertion has presented many difiiculties. The hydraulic valves are usually equipped with an axial opening in the end thereof, but aside from this opening there are no expedients that enable the attachment of a toolthereto. This has presented many problems to the mechanic in servicing hydraulic valve lifters, and in order to enable these valves to be serviced with minimum labor and 7 time a novel hydraulic valve lifter has been provided which embodies a simple but effective grasping expedient that is readily accessible and can be remotely adjusted to grasp the hydraulic valve for lifting as Well as inserting purposes. 7

One object of the present inventionis to simplify the construction and improve the effectiveness of lifting tools that are ordinarily required for normally inaccessible engine parts.

Another object is to provide a simple tool for a kneetype joint which can be utilized in conjunction with a valve engaging element for the ready insertion and remote adjustment to effectively grasp a valve assembly.

Still another object is to provide a valve lifting and inserting tool which embodies a knee-type joint and angularly shaped rod-like engaging element which can be readily inserted and adjusted to grasp a valve assembly for pulling or insertion.

A further object is to provide a knee-type joint in conjunction with a sleeve for use with an angularly bent rod-like valve engaging member so that it can be readily inserted into a hole or adjusted for elfective engagement therewith to pull or insert a valve assembly or the like.

A still further object is to provide an elongated sleeve member in conjunction with a knee-type joint having a valve engaging element which can be readily inserted or adjusted therewith to engage or disengage a valve assembly for the removal or insertion thereof.

Other objects and advantages will appear from the following description of an illustrative embodiment of the present invention.

In the drawing,

Figure 1 is a f ont view in elevation of a valve lifting and inserting tool embodying features of the present invention, parts thereof being broken away and shown in section to clarify the illustration.

Figure 2 is an enlarged sectional view in elevation of Patented June 5, 1956 ice the tool shown in Figure 1 as applied to an engine block and shown at the position for insertion in a hydraulic valve preparatory to effecting the grasp thereof.

Figure 3 is an enlarged front sectional view in elevation of the tool shown in Figures 1 and 2 adjusted for effectively grasping the hydraulic valve assembly and shown in the position wherein the valve has partially been lifted therewith.

Figure 4 is a sectional view taken substantially along line IV-IV of Figure 3.

Figure 5 is a fragmentary sectional view taken substantially along line VV of Figure 3.

The structure selected for illustration is not intended to serve as a limitation upon the scope or teachings of the invention, but is merely illustrative thereof. There may be considerable variations and adaptations; of all or part of the teachings depending upon the dictatesof commercial practice. The present embodiment comprises an elongated rod having an enlarged head 11 attached to the upper extremity 12 thereof by means of a suitable fastening expedient such as a set screw 13 to afford theconvenient and effective manual grasp thereof to manipulate the elongated rod 10 ina manner to be hereinafter described. A coil compression spring 14 envelops the elongated rod 10 beneath the head 11 thereof for contact with a washer 15 that slideably engages; the elongated rod iii to rest upon the top surface 16 of an engine block 17 when the tool is in the position for use as will appear more fully hereinafter. 4 e e The lower extremity of the elongatedrod 10 is milled or otherwise shaped to provide a flat symmetrically disposed ear 18 that is complemental to spaced furcations 19-20 for pivotal connection with the ear 18 thfough the medium of a pin 21 that is tightly driven into an aperture 22 in the ear 18 to register with aligned apertures 2324 of somewhat larged diameter thanthe pin 21 to freely permit the pivoting of a knee-type cylindrical joint member 25 with whieh the space furcations 1920 are intricately formed. The other end of the knee-type cylindrical joint member is also provided with space fu-rcations 26'27 to receive a tightly fitting pin 28 that carries a rod-like sleeve engaging member 29 that terminates in an open eye 30 for mounting on the pin 28. The rod-like engaging member 29 freely swings on: the pin 23 and has a straight shank :31 that terminates in an angularly offset free extremity 32 which is eapable of free insertion in a slightly larger aperture 33 provided in the cap 34 of the hydraulic cylinder valve assembly 35 which is part of and retained in a hydraulic valve cylinder 36 that is press fitted into the engine head 17 in the vicinity of each of its cylinders. A split ring 37 is positioned in an annular groove 38 provided in the hydraulic valve cylinder 36 to retain the valve sleeve 35 in assembled relation with its cylinder 36. In order to enable the knee-type joint 25 which pivotally carries the rod-like valve sleeve engaging wire 31 in one of two different positions for ready insertion and engagement with the hydraulic assembly 36, an elongated open end sleeve 39 is slideably disposed over the knee-type joint 25 and its extremities having the pivotal pins 21-28 mounted thereon. As shown, the knee-type joint adjusting sleeve 39 is interiorly threaded as at 40 at its upper end 41 to engage a correspondingly threaded cylindrical shoulder 42 to provide proximate to the lower end of the elongated rod 19 for threaded engagement and disengagement therewith so that the adjusting sleeve 39 may be in one of two different positions illustrated in Figures 2 and 3. To this end, the exterior surface of the adjusting sleeve 39 is knurled as at 43 to enable its ready rotation in one direction or the other for engagement or disengagement between its internal threads 40 and the externally threaded shoulder 42 on the elongated rod 10.

This enables the sleeve 43 in its disengaged position to be lifted above the knee-type joint 25 so that the latter may be readily pivoted to vertically align the angularly disposed extremity 32 of the engaging rod or wire 29 with the aperture 33 in the end cap 34 of the hydraulic valve sleeve 35. In this position, the knee-type joint 25 is angularly disposed as illustrated in Figure 2 with the sleeve engaging end 32 in position beneath the hydraulic valve sleeve end or closure cap 34 as the sleeve is displaced downwardly to align the knee-type joint 25 with the elongated handle rod 10 for engagement of the sleeve threads 40 with the threaded shoulder 42 on the handle rod 10. In this position, as illustrated in Figure 3, the lower extremity of the adjusting sleeve 39 engages the end or closure cap 34 on the hydraulic valve assembly to angularly dispose the grasp wire or rod extremity 32 and securely engage the hydraulic valve lifter end or closure 34 to permit the entire assembly to be manually lifted, as illustrated in Figure. 3. Upon fully lifting or pulling the valve assembly 35 from the engine head 17,

again placed in line with the opening 33 in the end or closure cap 34 for disengagement and removal.

It will be apparent from the foregoing that a very simple and effective hydraulic valve assembly lifter and inserter has been provided which is readily accessible and can be effectively engaged and disengaged therewith without entailing any appreciable time or labor.

While we have illustrated and described a preferred embodiment of this invention, it must be understood that the invention is capable of considerable variation and modification without departing from the spirit of the invention. We, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail ourselves of such variations and modifications as come within the scope of the appended claims.

We claim:

1. Ina sleeve valve puller and the like, an elongated handle member including an enlarged end gripper, a valve sleeve engaging member, an end jointed member movably connected between the free end of said handle member and said sleeve engaging member, a joint sleeve slidably mounted over said elongated handle member, valve sleeve engaging member and end jointed member to preclude yielding therebetween in an operative pulling position and permit yielding in an inoperative inserting position, a ring slidable on said elongated handle member to contact an engine block in its operative position, and

spring means enveloping said elongated handle member between said enlarged end gripper and said slidable ring to normally urge said handle member away from the valve sleeve to be pulled,whereby an impacting movement may be imparted to said valve sleeve member.

2. In a sleeve valve puller and the like, an elongated handle member including an enlarged end gripper, a valve sleeve engaging member, an end jointed member pivotally connected between the free end of said handle connected between the free end of said handle member member and said sleeve engaging member, a joint sleeve slidably mounted over said elongated handle member, valve sleeve engaging member and end jointed member to preclude pivoting therebetween in an operative pulling position and permit pivoting in an inoperative inserting position, a ring slidable on said elongated handle member to contact an engine block in its operative position, and spring means enveloping said elongated handle member between said enlarged end gripper and said slidable ring to normally urge said handle member away from the valve sleeve to be pulled, whereby an impacting move ment may be imparted to said valve sleeve member.

3. In a sleeve puller and the like, an elongated handle member including an enlarged end gripper, a valve sleeve engaging member, an end jointed member pivotally and said sleeve engaging member, said valve sleeve engaging member comprising an angularly shaped hole inserting rod which freely enters a hole when said end jointed member is freely pivotal for insertion and is precluded from removal therefrom when said jointed member is slidably mounted over said elongated handle member, valve sleeve engaging member and end jointed member to preclude pivoting therebetween in an operative pulling position of handle sleeve displacement, a ring slidable on said elongated handle member to contact an engine block in its operative position, and spring means enveloping said elongated handle member between said enlarged end gripper and said slidable ring to normally urge said handle member away from the valve sleeve to be pulled, whereby an impacting movement may be imparted to said valve sleeve member.

References Cited in the file of this patent UNITED STATES PATENTS 1,102,863 Bojas July 7, 1914 1,231,254 Hancock June 26, 1917 1,629,632 Nobles May 24, 1927 1,986,093 Abernathy Jan. 1, 1935 2,430,512 Johnson Nov. 11, 1947 

